SU926524A1

SU926524A1 - Device for measuring diameter

Info

Publication number: SU926524A1
Application number: SU802985374A
Authority: SU
Inventors: Евгений Георгиевич Плетнев; Юрий Александрович Ефимушкин
Original assignee: Предприятие П/Я А-7555
Priority date: 1980-09-29
Filing date: 1980-09-29
Publication date: 1982-05-07

Description

Изобретение относитс к измерительной технике и может быть использовано в м&шиностроении дл измерени диаметров деталей и отклонени диаметра от эталонного значени .The invention relates to a measurement technique and can be used in m & t industry to measure the diameters of parts and the deviation of the diameter from a reference value.

Известно устройство дл измерени диаметра, содержащее основание, датчик и блок обработки измерительного сигнала (1J.A device for measuring the diameter is known, comprising a base, a sensor, and a processing unit for measuring the signal (1J.

Недостатком устройства вл етс недостаточно высока точность и оперативность измерени .The disadvantage of the device is not high enough accuracy and efficiency of measurement.

Наиболее близким по технической сущности к предлагаемому вл етсй усГтройство дл измерени диаметра, содержащее основание, датчик линейг ных размеров, установленный на основании , аналого-цифровой преобразователь , входом подключенный к выходу , вычислительный блок, первый вход которого подключен к выходу аналого-цифрового преобразовател , регистр пам ти, информационный вход которого подключен к выходу аналогоцифрового преобразовател , а выход к второму входу вычислительного блока , блок управлени , выход которого подключен к управл ющему входу регистра пам ти, и регистратор 2.The closest in technical essence to the present invention is a diameter measuring device containing a base, a linear dimension sensor mounted on a base, an analog-to-digital converter, an input connected to an output, a computing unit, the first input of which is connected to an output of an analog-digital converter, memory register, whose information input is connected to the output of the analog-digital converter, and the output to the second input of the computing unit, the control unit, the output of which is connected to the control memory register register and recorder 2.

Недостатком этого устройства вл етс недостаточно высока точность и оперативность измерени .A disadvantage of this device is that the accuracy and efficiency of the measurement is not high enough.

Цель изобретени - повышение точности и оперативности измерени .The purpose of the invention is to improve the accuracy and efficiency of measurement.

Поставленна цель достигаетс тем, что устройство снабжено механизмом вращени измер емого объекта, формирователем импульсов, входом The goal is achieved by the fact that the device is equipped with a rotation mechanism of the measured object, a pulse shaper, an input

10 соединенным с механизмом вращени , блоком пам ти, информационный вход которого соединен с выходом аналогоцифрового преобразовател , управл ющий вход - с выходом формирова15 тел импульсов, а выход с третьим входом вычислительного блока, блоком определени экстремума, информационный вход которого соединен с выходом вычислительного блока, а вход 10 connected to a rotation mechanism, a memory unit whose information input is connected to the output of an analog-digital converter, a control input to the output of a pulse body, and an output to a third input of the computing unit, an extremum determination unit, whose information input is connected to the output of the computing unit, and the entrance

20 запуска - с выходом формировател импульсов, счетчиком импульсов, вход которого подключен к выходу формировател импульсов, и дешифратором, вход которого соединен с выходом 20 startup - with the output of the pulse driver, a pulse counter, the input of which is connected to the output of the pulse driver, and a decoder, the input of which is connected to the output

25 счетчика импульсов, а выходы - с входами управлени блока определени экстремума, выход которого соединен с входом регистратора.25 of the pulse counter, and the outputs with the control inputs of the extremum detection unit, the output of which is connected to the recorder input.

На чертеже приведена блок-схема The drawing shows a block diagram

Claims

30 devices. The device contains a base 1 on which a monitored product 2 is installed with the possibility of rotation, a sensor 3 of linear dimensions, an analog-digital converter 4, an input connected to the output of the sensor 3, a computing unit a memory register b, the input of which is connected to the output of the analog-digital converter 4, a control unit 7, an output connected to a control input of the register 6 of the memory, a mechanism 8 of rotation of the measured object, a driver 9 of pulses associated with the mechanism 8 of rotation, a block 10 of memory whose input is connected to the output one of the pulse shaper, an extremum determination unit 11, whose information input is connected to the output of the computing unit 5, a pulse counter 12, a decoder 13 input connected to the output of the counter 12, and a recorder 14 connected at the output of the extumum determination unit 11. The device works as follows. Based on 1, a reference part 2 is installed, on the surface of which a sensor 3 of linear dimensions is exposed. The output signal of the sensor 3, converted into a digital form in the analog-to-digital converter 4, is entered into the memory register 6 by a command from the control unit 7. At this point, the process of attaching the sensor to the reference surface is completed, and the device is ready for measurement. Based on 1, it establishes with the controlled part 2, the mechanism of rotation 8 of the part is activated, under the action of which the pulse shaper 9 begins to generate pulses arriving at the control input of the memory unit 1.0 at the input of the counter 12 and the start input of the unit. 11 extremum definitions. In memory blocks 10, the digital information from the sensor of 3 linear dimensions is received and advanced to the output of the digital data obtained from 6 tons of points on the surface of the tested part. The writing and shifting in the shift registers of block 10 is carried out under the influence of pulses from the formation of a body of 9 pulses. Counter 12 counts the number of measuring points, and using the decoder 13 fixes the fact that first the semicircle formed by the surface of the tested part passed from the beginning of the second semicircle to form a signal allowing reception of digital information from the computing unit L determining the deviation of the diameter from the reference value 4d (H d; (a, - aj) + (),. Is the deviation of the diameter from the reference value in some section i formed by points i, and ij on the surface of the part;. Aj is the magnitude of the signal from the sensor to the reference surface; a is the value of the signal from the sensor at point i (on the first semicircle of the monitored surface; a ;. is the value of the signal from the sensor at point ij, which is located on the second semicircle of the surface being monitored and diametrically opposite to point 1. Begin testing the next cycle of the detection unit 11 of the extremum sets the output signal from the pulse former of the impulse 9. During the passage relative to the sensor of the second semicircle of the test surface, the extremum determining unit 11 sequentially receives si Nala diameter deviation from a reference value, wherein an isolated and stored extreme value deviation of diameter d l of the reference value. After passing all points on the circumference of the monitored surface, the decoder 13 generates a signal for the end of the measurement cycle, allowing the output of the output signal of the extremum determination unit 11, which is sent to the recorder 14. The device allows to increase the measurement accuracy and reduce the number of operations during the measurements associated with sensor to the reference surface. DETAILED DESCRIPTION OF THE INVENTION A diameter measuring device comprising a base, a linear dimension sensor mounted on a base, an analog-to-digital converter, an input connected to the sensor output, a computing unit, the first input of which is connected to the output of an analog-digital converter, a memory recorder whose information input connected to the output of the analog-digital converter, and the output to the second input of the computing unit, the control unit whose output is connected to the control input of the memory register, and In order to improve the accuracy and efficiency of the measurement, it is equipped with a rotation mechanism of the object to be measured, a pulse shaper input connected to the rotation mechanism, a memory unit whose information input is connected to the output of the analog-digital converter that controls the input is with the pulse driver output, and the output is with the third input of the computing unit, the extremum detection unit, whose information input is connected to the computing output (the unit, and the start input. from the output a pulse generator, a pulse counter, the input of which is connected to the output of the pulse former, and a decoder, the input of which is connected to the output of the pulse counter, and the output - to the control inputs of the extremum determination unit, the output of which is connected to the recorder. Sources of information taken into account in the examination 1. The author's certificate of the USSR If 51324, cl. G 01 B 7/12, 1978.

2.Patent of Great Britain About 1406805 cl. G 01 B 19/12, 1975 (prototype).